In this case I think you are right to be impatient! Pain is not something to put up with if you can help it.

Do hang in there. Sometimes it takes awhile to get the treatment you need! So sorry you are in such pain! I have never taken that medication. The tegretol took only a few minutes to take away my pain! but they had to work me up to the dose I needed so I was pain free for maybe 8 hours, then wham the pain was back. Keep reporting in to your doctor. One of the ways they confirm a diagnosis of TN is by whether the medications work. Maybe this isn't the right drug or the right dose or the right diagnosis. Or maybe this drug works more slowly. You need to ask your doctor. He or she should know and may be able to switch or adjust if needed.